It protects a single-phase final subcircuit against earth leakage and overload/short-circuit, with a 13 A rated current, C tripping characteristic, and 30 mA residual-current sensitivity.
The 13 A rating at 30 °C is the headline current for resistive and mixed loads. At 40 °C ambient — common inside a closed distribution board — the continuous rating derates to 12.48 A; at 50 °C it drops to 11.96 A, and at 60 °C to 11.31 A. The 30 mA residual-current element catches ground faults at the threshold required for personal protection in most residential and commercial installations. The 1P+N pole design switches the line conductor and disconnects the neutral, but the neutral pole is not protected against overcurrent — only the line pole has the thermal-magnetic trip.
The supply can enter from either the top or bottom — no mandatory orientation. Mounting position is any, so the RCBO can be installed horizontally in a shallow enclosure if needed.